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Finding the Fourth Proportional to 163,585.80, 245,249.10 and 89,713.80

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Solution

The fourth proportional to 163,585.80, 245,249.10 and 89,713.80 is: 134,499.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,585.80 : 245,249.10 = 89,713.80 : x
  2. Step 2: Convert to fraction form
    163,585.80/245,249.10 = 89,713.80/x
  3. Step 3: Cross multiply
    163,585.80x = 245,249.10 × 89,713.80
  4. Step 4: Simplify right side
    163,585.80x = 22,002,228,707.58
  5. Step 5: Solve for x
    x = 22,002,228,707.58/163,585.80
  6. Step 6: Final answer
    x = 134,499.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.